NSString与int和float的相互转换

NSString *tempA = @"123";

??NSString *tempB = @"456";

?

1，字符串拼接

?NSString *newString = [NSString stringWithFormat:@"%@%@",tempA,tempB];

?

2，字符转int

int intString = [newString intValue];

?

3，int转字符

NSString *stringInt = [NSString stringWithFormat:@"%d",intString];

?

4，字符转float

?float floatString = [newString?floatValue];

5，float转字符

NSString *stringFloat = [NSString stringWithFormat:@"%f",intString];